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295.0 Aluminum vs. S20910 Stainless Steel

295.0 aluminum belongs to the aluminum alloys classification, while S20910 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 295.0 aluminum and the bottom bar is S20910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60 to 93
230 to 290
Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 2.0 to 7.2
14 to 39
Fatigue Strength, MPa 44 to 55
310 to 460
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
79
Shear Strength, MPa 180 to 230
500 to 570
Tensile Strength: Ultimate (UTS), MPa 230 to 280
780 to 940
Tensile Strength: Yield (Proof), MPa 100 to 220
430 to 810

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 170
1080
Melting Completion (Liquidus), °C 640
1420
Melting Onset (Solidus), °C 530
1380
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 140
13
Thermal Expansion, µm/m-K 23
16

Otherwise Unclassified Properties

Base Metal Price, % relative 10
22
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 7.9
4.8
Embodied Energy, MJ/kg 150
68
Embodied Water, L/kg 1140
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2 to 13
120 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 77 to 340
460 to 1640
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 21 to 26
28 to 33
Strength to Weight: Bending, points 27 to 32
24 to 27
Thermal Diffusivity, mm2/s 54
3.6
Thermal Shock Resistance, points 9.8 to 12
17 to 21

Alloy Composition

Aluminum (Al), % 91.4 to 95.3
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
20.5 to 23.5
Copper (Cu), % 4.0 to 5.0
0
Iron (Fe), % 0 to 1.0
52.1 to 62.1
Magnesium (Mg), % 0 to 0.030
0
Manganese (Mn), % 0 to 0.35
4.0 to 6.0
Molybdenum (Mo), % 0
1.5 to 3.0
Nickel (Ni), % 0
11.5 to 13.5
Niobium (Nb), % 0
0.1 to 0.3
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.7 to 1.5
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.25
0
Vanadium (V), % 0
0.1 to 0.3
Zinc (Zn), % 0 to 0.35
0
Residuals, % 0 to 0.15
0